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AN-140 AIRCRAFT ELECTRICAL POWER SUPPLY
Consumers
centralized electric power is provided with three electrical power supply
systems:
| - primary electrical
power supply system of three-phase A.C., voltage 115/200 V of alternative
frequency; |
- secondary electrical
power supply system of D.C. voltage 27 V; |
- secondary electrical
power supply system of three-phase A.C. |
ELECTRICAL POWER SUPPLY SYSTEM 115/200
V ALTERNATIVE FREQUENCY
The system contains:
| - two generators 30030-140/G1,
G2/; |
- control protection and monitoring
units; |
| - generator GT116PCH8ED/APU
generator; |
- commutation and protective
equipment, monitors. |
| Electrical power
supply system of three-phase A.C. voltage 115/200 V, frequency 340-515
Hz consists of two independent channels - left hand side and right
hand side. Each channel includes one generator 3000-140, mounted on
engine of power plant, as well as control, protection, monitoring
and commutation equipment. |
The system also
provides consumers supply of electric power from generator GT16PCH8ED,
mounted on APU engine or from external power source, A.C. voltage
115/200 V, frequency 400 Hz. Electrical power supply system 115/200
V, constant frequency. |
The system contains:
| - three static converters type
PTS-2500 (PT1, PT2, PT3); |
- converter selector switch
APP-1M-5; |
| - two bus selector switches
APSH-3M; |
- commutation and protective
equipment, monitors. |
Electrical power supply system of three-phase
A.C. voltage 115-200 V, frequency 400 Hz, consists of two independent
channels - left hand side and right hand side. Each channel includes converter
PTS-2500, bus selector switch APSH-3M, commutation and protective equipment.
D.C.
ELECTRICAL POWER SUPPLY SYSTEM
The
system contains:
| -
three rectifiers F11RB4140 (VU1-VU3); |
-
two storage batteries 20FP2S ICT-R (AKK1, AKK2); |
| -
three devices AZUVU200B (A31-A3U3); |
-
commutation and protective equipment, monitors. |
Electrical
power supply system of D.C. voltage 27 V consists of two independent channels
- left hand side and right hand side. Left hand side channel includes:
rectifier BU1, AZU1 device and storage battery AKK2.
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